Improvement in mitre-vise



(limited fittin CHARLES W. WILSON, OF NORFOLK, VIRGINIA.

Letters Patent N0.\95,299, dated September 28, 1869.

IMPROVEMENT IN MITRE-V153.

The Schedule referred to in these Letters Patent and making part of thesame;

To all whom it may concern:

Be it known that I, CHARLES W. WILSON, of Norfolk, in the county ofNorfolk, and State of Virginia, have invented a new and usefulImprovement in-Mitre- Vise; and I do hereby declare that'the followingis a full, clear, and exact description thereof, which will enableothers skilled in the art to make and use the same, reference being hadto the accompanying drawings, forming part of this specification.

This invention relates to an improvement in means for fasteningmitre-joints, more especially designed for use in making picture-flames,but applicable to other purposes; and consists in'holding the parts forforming the joint together, by means of a screw and a right-angled slideon a suitable bed or platform, as will be hereinafter more .fullydescribed.

In the accompanying drawing,

Figure 1 represents a top or plan view of the device complete, showingpieces of moulding in red color coufined therein,'as when being fastenedfor making a mitre-joint.

' Figure 2 is a vertical cross-section of fig. 1, through the line a:at, showing the fastening-screw, and the manner in which it operates onthe angular slide.

Siniilar letters of reference indicate corresponding parts.

A'is the platform or bed.

B is a. rectangular slot through the 'bed, in which the nut of the screwslides.

O is the nut.

D is the right-angled slide, which is attached to and slides with thenut.

On the face of the bed there are ribs E, placed exactly at a right anglewith each other, against which the pieces of moulding are forced by theright-angled slide D. Y

F is the screw which is confined in the lug Or, so that it has nolongitudinal motion, but is free to revolve, and of course carries, bymeans of the nut G,

the slide D back and forth on the face of the bed A.

The edge of the slide and the ribs E form an adjustable groove, in whichthe pieces. of moulding are confined, as seen 'in the drawing.

When the "moulding has been cut to a mitre and placed in the grooves,the pieces are securely held by turning up the screw.

It will be seen that the mitre-joint projects beyond the angle of thebed, so that it is fully exposed for fastening as may be desired.

By this apparatus, ,mitre-frames may be fastened with perfect accuracy,and with the greatest dispatch.

Having thus described my invention,

, I claim as new, and desire to secure by Letters Patent Theright-angled slide 1) and ribs E, in combination 4 with the screw F, nut0, slot B, and bed A, substautially as described and for the purposespecified.

Witnesses: O. W. WILSON.

FRANK BLocKLnY, O. L. TOPLIFF.

